| 摘要 |
<p>Aluminium can stock which has strength, ductility and anisotropic properties in excess of conventional aluminium can stocks. The aluminium can stock is produced from an alloy with 3.0-8.0 wt% zinc, 0.5-3.0 wt% magnesium, less than 0.7 wt% iron, 0.01-2.0 wt% silicon, 0.05-0.9 wt% copper, 0.1-1.1 wt% manganese, less than 0.3 wt% chromium and incidental impurities less than 0.15 wt%. While zirconia is not generally an impurity in these aluminium alloys it is preferable that the amount present is less than 0.01 wt%. The aluminium can stock is produced by a process comprising the steps of forming melt of the alloy metal suitable for casting, casting the melt into a form suitable for rolling, performing an intermediate rolling to an intermediate thickness, treating the alloy material with heat, performing finish rolling by a cold rolling reduction within the range of 2 to 85 % and temper heat treating the material to the desired ductility and strength properties.</p> |
